Question

I am trying to pull data from a Database using C#.net and use a Foreach loop to make it visible on a page. Every time i run the code i only get one item that shows up when i know that there is at least 7 items in the DB. i have placed the code below for the C#.

SqlConnection oConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["HomeGrownEnergyConnectionString"].ToString());
    string sqlEnergy = "Select * from Product p where p.ProductTypeId=3";
    SqlCommand oCmd = new SqlCommand(sqlEnergy, oConnection);
    DataTable dtenergy = new DataTable();
    SqlDataAdapter oDa = new SqlDataAdapter(oCmd);
    try
    {
        oConnection.Open(); ;
        oDa.Fill(dtenergy);
    }
    catch (Exception ex)
    {
        lblnodata.Text = ex.Message;
        return;
    }
    finally
    {
        oConnection.Close();
    }
    DataTableReader results = dtenergy.CreateDataReader();

    if (results.HasRows)
    {
        results.Read();
        foreach(DataRow result in dtenergy.Rows)
        {
            byte[] imgProd = result["ThumnailLocation"] as byte[];
            ID.Text = result["ProductID"].ToString();
            Name.Text = result["Name"].ToString();
            price.Text = FormatPriceColumn(result["Price"].ToString());


        }
    }

Here is the code for the asp.net.

<div>
<asp:Image ID="imgProd" CssClass="ProdImg" runat="server" />
<asp:Label runat="server" ID="ID"  />
<asp:Label runat="server" ID="Name" />
<asp:Label runat="server" ID="price" />
<asp:TextBox ID="txtQty" MaxLength="3" runat="server" Width="30px" />
<asp:Button runat="server" ID="Addtocart" Text="Add To Cart" CommandName="AddToCart" ItemStyle-CssClass="btnCol" />

If someone could please help me that would be great thanks.

Answer 1

You should set the image column type in database to byte[] and use this tow method to get and set the image:

public BitmapImage ImageFromBuffer(Byte[] bytes)
{
    MemoryStream stream = new MemoryStream(bytes);
    BitmapImage image = new BitmapImage();
    image.BeginInit();
    image.StreamSource = stream;
    image.EndInit();
    return image;
}

public Byte[] BufferFromImage(BitmapImage imageSource)
{
    Stream stream = imageSource.StreamSource;
    Byte[] buffer = null;
    if (stream != null && stream.Length > 0)
        {
            using (BinaryReader br = new BinaryReader(stream))
                {
                    buffer = br.ReadBytes((Int32)stream.Length);
                }
        }

    return buffer;
}